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AN5484 - Implementing the Class B Functional Safety Diagnostics Library in Microcontrollers
Introduction
1 Functional Safety Standards and Levels
2 Functional Safety Tools and Documents
2.1 Safety Manual
2.2 FMEDA Report
2.3 Hardware Feature
2.4 Development Ecosystem
3 The Application
3.1 Start-up
3.2 Main Loop
3.3 Self-Test and State Machine
3.4 Safe State
4 Building the Application
4.1 Hardware Setup
4.2 Software Setup
4.3 Changing Configurations
4.4 Checksum Configuration and Setup
4.5 Programming the Device
5 Sensor Theory of Operation
6 Functional Safety Tests Implemented
6.1 CPU Registers
6.2 Flash
6.3 EEPROM
6.4 SRAM
7 Watchdog
8 Application Specific Self-Tests
8.1 Analog Self-Tests
8.2 Critical Variable
9 Self-Test Limitations
9.1 Ammonia Sensor
9.2 Buzzer
10 Conclusion
11 Revision History
Microchip Information
The Microchip Website
Product Change Notification Service
Customer Support
Microchip Devices Code Protection Feature
Legal Notice
Trademarks
Quality Management System
Worldwide Sales and Service